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Finding the Fourth Proportional to 3,492.01, 4,818.87 and 1,920.10

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Solution

The fourth proportional to 3,492.01, 4,818.87 and 1,920.10 is: 2,649.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.01 : 4,818.87 = 1,920.10 : x
  2. Step 2: Convert to fraction form
    3,492.01/4,818.87 = 1,920.10/x
  3. Step 3: Cross multiply
    3,492.01x = 4,818.87 × 1,920.10
  4. Step 4: Simplify right side
    3,492.01x = 9,252,700.24
  5. Step 5: Solve for x
    x = 9,252,700.24/3,492.01
  6. Step 6: Final answer
    x = 2,649.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.